/*
 *
 *    Copyright (c) 2024 Project CHIP Authors
 *    All rights reserved.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

#include <EnergyManagementAppCmdLineOptions.h>
#include <EnergyManagementAppCommonMain.h>
#include <app-common/zap-generated/attributes/Accessors.h>
#include <device-energy-management-modes.h>

using namespace chip::app::Clusters;
using namespace chip::app::Clusters::DeviceEnergyManagementMode;
using namespace chip::app::Clusters::DeviceEnergyManagement;

using chip::Protocols::InteractionModel::Status;
template <typename T>
using List              = chip::app::DataModel::List<T>;
using ModeTagStructType = chip::app::Clusters::detail::Structs::ModeTagStruct::Type;

namespace {

static std::unique_ptr<DeviceEnergyManagementModeDelegate> gDeviceEnergyManagementModeDelegate;
static std::unique_ptr<ModeBase::Instance> gDeviceEnergyManagementModeInstance;

} // namespace

CHIP_ERROR DeviceEnergyManagementModeDelegate::Init()
{
    return CHIP_NO_ERROR;
}

void DeviceEnergyManagementModeDelegate::HandleChangeToMode(uint8_t NewMode,
                                                            ModeBase::Commands::ChangeToModeResponse::Type & response)
{
    response.status = to_underlying(ModeBase::StatusCode::kSuccess);
}

CHIP_ERROR DeviceEnergyManagementModeDelegate::GetModeLabelByIndex(uint8_t modeIndex, chip::MutableCharSpan & label)
{
    if (modeIndex >= MATTER_ARRAY_SIZE(kModeOptions))
    {
        return CHIP_ERROR_PROVIDER_LIST_EXHAUSTED;
    }
    return chip::CopyCharSpanToMutableCharSpan(kModeOptions[modeIndex].label, label);
}

CHIP_ERROR DeviceEnergyManagementModeDelegate::GetModeValueByIndex(uint8_t modeIndex, uint8_t & value)
{
    if (modeIndex >= MATTER_ARRAY_SIZE(kModeOptions))
    {
        return CHIP_ERROR_PROVIDER_LIST_EXHAUSTED;
    }
    value = kModeOptions[modeIndex].mode;
    return CHIP_NO_ERROR;
}

CHIP_ERROR DeviceEnergyManagementModeDelegate::GetModeTagsByIndex(uint8_t modeIndex, List<ModeTagStructType> & tags)
{
    if (modeIndex >= MATTER_ARRAY_SIZE(kModeOptions))
    {
        return CHIP_ERROR_PROVIDER_LIST_EXHAUSTED;
    }

    if (tags.size() < kModeOptions[modeIndex].modeTags.size())
    {
        return CHIP_ERROR_INVALID_ARGUMENT;
    }

    std::copy(kModeOptions[modeIndex].modeTags.begin(), kModeOptions[modeIndex].modeTags.end(), tags.begin());
    tags.reduce_size(kModeOptions[modeIndex].modeTags.size());

    return CHIP_NO_ERROR;
}

void DeviceEnergyManagementMode::Shutdown()
{
    gDeviceEnergyManagementModeInstance.reset();
    gDeviceEnergyManagementModeDelegate.reset();
}

void emberAfDeviceEnergyManagementModeClusterInitCallback(chip::EndpointId endpointId)
{
    /* emberAfDeviceEnergyManagementModeClusterInitCallback() is called for all endpoints
       that include this cluster (even the one we disable dynamically). So here, we only
       proceed when it's called for the right endpoint determined by GetEnergyDeviceEndpointId()
       (a cmd line argument on linux or #define on other platforms).
    */
    if (endpointId != GetEnergyDeviceEndpointId())
    {
        return;
    }

    VerifyOrDie(!gDeviceEnergyManagementModeDelegate && !gDeviceEnergyManagementModeInstance);
    gDeviceEnergyManagementModeDelegate = std::make_unique<DeviceEnergyManagementMode::DeviceEnergyManagementModeDelegate>();
    gDeviceEnergyManagementModeInstance = std::make_unique<ModeBase::Instance>(gDeviceEnergyManagementModeDelegate.get(),
                                                                               endpointId, DeviceEnergyManagementMode::Id, 0);
    TEMPORARY_RETURN_IGNORED gDeviceEnergyManagementModeInstance->Init();
}

void emberAfDeviceEnergyManagementModeClusterShutdownCallback(chip::EndpointId endpointId)
{
    if (endpointId != GetEnergyDeviceEndpointId())
    {
        return;
    }

    if (gDeviceEnergyManagementModeInstance)
    {
        gDeviceEnergyManagementModeInstance->Shutdown();
    }
    DeviceEnergyManagementMode::Shutdown();
}

void MatterDeviceEnergyManagementModeClusterServerShutdownCallback(chip::EndpointId endpointId)
{
    if (endpointId != GetEnergyDeviceEndpointId())
    {
        return;
    }

    DeviceEnergyManagementMode::Shutdown();
}
